CCIE Voice Written Exam
I achieved CCNP Voice recently and now looking to tackle the CCIE Voice written exam. Please recommend any reading material or provide any pointers for preparing and passing the written exam. Any advice or suggestions are greatly appreciated.
"The heights by great men reached and kept were not attained by sudden flight, but they, while their companions slept were toiling upward in the night." from the poem: The Ladder of St. Augustine, Henry Wadsworth Longfellow